Is a octagon a quariateral shape?

What is the radius of a circle if the circumference is 10? How many 11 are in 55? How many units of alcohol in one glass of Guinness? What is the decimal for sixty four hundredths? How many yards are in 6 4ft? When scientific measurements are made they are reported using all certain digits plus? What is 2x-4? The hardest order of operation problem? What is the divisible of 4090? How many feet and inches are there in 91 inches? What does it mean when there is a horizontal line on the round window and a vertical line in the square window on the ept? You got 92 on 1st assignment and 91 on the 2nd each of them is worth 25 percent of the final mark the last assignment is worthed 50 percent what mark should you get if you hope 60 percent average? How do you round off 1993 to the nearest hundred? What do you label on the x and y axes of a graph? How many square feet in 22 yards? How do you do a pencil roll in gymnastics? Square root of 920000? What is 63 in French? How do you convert 200 cubic centimeters into cubic inches? What has four congruent sides and two parallel lines but no right angles?